Open the Edit drawer from any source in the Postback sources list. It opens with three tabs that group what you'll do most often.
- Settings
- Name, Platform, Outbound target URL, Rate limit (RPS), Attribution window (days), and the Macro syntax dropdown. The slow-changing knobs — you'll touch this tab once at setup and rarely after.
- Mapping
- Field map (canonical → operator parameter name) and Event map (operator label → canonical event type) side by side. The two definitions that interpret every incoming postback.
- URLs
- One ready-to-paste Postback URL per canonical event in your event map, the Track URL for reference, and the Secrets section with Rotate buttons. The drawer opens here by default because grabbing a URL is the most common reason to re-open an existing source.
Per-event URLs. The URLs tab generates one URL for each canonical event in your event map — Registration, FTD, Deposit, etc. — with the event type hardcoded in the URL. Just after Save or Rotate the URL is fully paste-ready (the inbound token is inlined). On a reopened drawer the URL carries a literal {TOKEN} placeholder instead, because we only show the secret once — substitute the value you saved earlier, or click Rotate token on the warning panel to get a fresh URL with the new token inlined.
For networks that route every event type to its own dedicated URL (1Win is the canonical example — Registration / Revenue / All deposits / First deposit / Recurring deposit / Application launch each get separate slots), the generated URL already includes event_type=registration / =ftd / etc. so our processor can classify the event without it being in the payload.
Save persists all three tabs at once. The single Save button at the bottom of the drawer commits any changes you've made across Settings, Mapping, and URLs (the Rotate buttons are immediate — they don't wait for Save).
The two Rotate buttons in the Secrets section issue a fresh secret and surface it once via the reveal modal — same flow as during create. Update the network before the old secret expires; old and new run concurrently for a short grace period.